gistfile1.swift

import UIKit
import CoreBluetooth

class ViewController: UIViewController,CBPeripheralManagerDelegate {
    
    var bluetoothManager : CBPeripheralManager?

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        
        self.bluetoothManager = CBPeripheralManager(delegate: self, queue: nil, options: nil)

    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

    
    func peripheralManagerDidUpdateState(peripheral: CBPeripheralManager!) {
        
        
        switch (peripheral.state) {
        case .PoweredOn:
            println("powered on")
        case .PoweredOff:
            println("powered off")
        case .Unsupported:
            println("unsupported")
        case .Resetting:
            println("resetting")
        case .Unknown:
            println("unknown")
        case .Unauthorized:
            println("unauthorized")
            
        }
       
        
    }

}